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Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.